John Paul DeJoria, Entrepreneur, $4 billion

Billionaire Founder of the Paul Mitchell Systems, John Paul DeJoria, is a serial entrepreneur whose success came when things weren’t going great for him. With a loan of $700 and collaboration with hairdresser Paul Mitchell, the Paul Mitchell Systems was founded just after he was fired from a previous job.

DeJoria has some billions to his name in 2021, but he once sold shampoo door to door and was sleeping in his car for a while. He also worked as a janitor and an insurance salesman to afford his basic needs.